Cartridge case



FIG. 1 is a top perspective view of a cartridge case showing the present design;

FIG. 2 is a side view thereof;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a plan bottom view thereof.

The portions of the cartridge case shown in in broken lines form no part of the claimed design. 

The ornamental design for a cartridge case, as shown. 